Dorian knurling tools are designed for use with CNC and lathe machines to imprint straight lines, diamond patterns or diagonal lines on the exterior surface of tools or equipment for better gripping. These knurling tools come with square shanks and dual wheels for creating precision pattern having teeth of uniform pitch on any cylindrical, round or flat surface. Knurling is done on those workpieces or components that are keyed together in an assembly. You can also use these high-performance Dorian Tools for manufacturing mechanical pencils, control knobs and barbell bars. They are available in different shank heights, widths and lengths.